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diff --git a/src/test/dtf/EmbeddedUI/SampleEmbeddedUI.cs b/src/test/dtf/EmbeddedUI/SampleEmbeddedUI.cs
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1namespace WixToolset.Samples.EmbeddedUI
2{
3 using System;
4 using System.Collections.Generic;
5 using System.Configuration;
6 using System.Threading;
7 using System.Windows;
8 using System.Windows.Threading;
9 using WixToolset.Dtf.WindowsInstaller;
10 using Application = System.Windows.Application;
11
12 public class SampleEmbeddedUI : IEmbeddedUI
13 {
14 private bool isMaintenance;
15 private Thread appThread;
16 private Application app;
17 private SetupWizard setupWizard;
18 private ManualResetEvent installStartEvent;
19 private ManualResetEvent installExitEvent;
20
21 /// <summary>
22 /// Initializes the embedded UI.
23 /// </summary>
24 /// <param name="session">Handle to the installer which can be used to get and set properties.
25 /// The handle is only valid for the duration of this method call.</param>
26 /// <param name="resourcePath">Path to the directory that contains all the files from the MsiEmbeddedUI table.</param>
27 /// <param name="internalUILevel">On entry, contains the current UI level for the installation. After this
28 /// method returns, the installer resets the UI level to the returned value of this parameter.</param>
29 /// <returns>True if the embedded UI was successfully initialized; false if the installation
30 /// should continue without the embedded UI.</returns>
31 /// <exception cref="InstallCanceledException">The installation was canceled by the user.</exception>
32 /// <exception cref="InstallerException">The embedded UI failed to initialize and
33 /// causes the installation to fail.</exception>
34 public bool Initialize(Session session, string resourcePath, ref InstallUIOptions internalUILevel)
35 {
36 if (session != null)
37 {
38 if ((internalUILevel & InstallUIOptions.Full) != InstallUIOptions.Full)
39 {
40 // Don't show custom UI when the UI level is set to basic.
41 return false;
42
43 // An embedded UI could display an alternate dialog sequence for reduced or
44 // basic modes, but it's not implemented here. We'll just fall back to the
45 // built-in MSI basic UI.
46 }
47
48 if (String.Equals(session["REMOVE"], "All", StringComparison.OrdinalIgnoreCase))
49 {
50 // Don't show custom UI when uninstall was specified on the command line.
51 return false;
52 }
53
54 this.isMaintenance = session.EvaluateCondition("Installed");
55 }
56
57 // Start the setup wizard on a separate thread.
58 this.installStartEvent = new ManualResetEvent(false);
59 this.installExitEvent = new ManualResetEvent(false);
60 this.appThread = new Thread(this.Run);
61 this.appThread.SetApartmentState(ApartmentState.STA);
62 this.appThread.Start();
63
64 // Wait for the setup wizard to either kickoff the install or prematurely exit.
65 int waitResult = WaitHandle.WaitAny(new WaitHandle[] { this.installStartEvent, this.installExitEvent });
66 if (waitResult == 1)
67 {
68 // The setup wizard set the exit event instead of the start event. Cancel the installation.
69 throw new InstallCanceledException();
70 }
71 else
72 {
73 switch (this.setupWizard.Operation)
74 {
75 case SetupOperationType.Repair:
76 session["REINSTALL"] = "ALL";
77 break;
78 case SetupOperationType.Uninstall:
79 session["REMOVE"] = "ALL";
80 break;
81 }
82
83 // Start the installation with a silenced internal UI.
84 // This "embedded external UI" will handle message types except for source resolution.
85 internalUILevel = InstallUIOptions.NoChange | InstallUIOptions.SourceResolutionOnly;
86 return true;
87 }
88 }
89
90 /// <summary>
91 /// Processes information and progress messages sent to the user interface.
92 /// </summary>
93 /// <param name="messageType">Message type.</param>
94 /// <param name="messageRecord">Record that contains message data.</param>
95 /// <param name="buttons">Message box buttons.</param>
96 /// <param name="icon">Message box icon.</param>
97 /// <param name="defaultButton">Message box default button.</param>
98 /// <returns>Result of processing the message.</returns>
99 public MessageResult ProcessMessage(InstallMessage messageType, Record messageRecord,
100 MessageButtons buttons, MessageIcon icon, MessageDefaultButton defaultButton)
101 {
102 // Synchronously send the message to the setup wizard window on its thread.
103 object result = this.setupWizard.Dispatcher.Invoke(DispatcherPriority.Send,
104 new Func<MessageResult>(delegate()
105 {
106 return this.setupWizard.ProcessMessage(messageType, messageRecord, buttons, icon, defaultButton);
107 }));
108 return (MessageResult) result;
109 }
110
111 /// <summary>
112 /// Shuts down the embedded UI at the end of the installation.
113 /// </summary>
114 /// <remarks>
115 /// If the installation was canceled during initialization, this method will not be called.
116 /// If the installation was canceled or failed at any later point, this method will be called at the end.
117 /// </remarks>
118 public void Shutdown()
119 {
120 // Wait for the user to exit the setup wizard.
121 this.setupWizard.Dispatcher.BeginInvoke(DispatcherPriority.Normal,
122 new Action(delegate()
123 {
124 this.setupWizard.EnableExit();
125 }));
126 this.appThread.Join();
127 }
128
129 /// <summary>
130 /// Creates the setup wizard and runs the application thread.
131 /// </summary>
132 private void Run()
133 {
134 this.app = new Application();
135 this.setupWizard = new SetupWizard(this.installStartEvent, this.isMaintenance);
136 this.setupWizard.InitializeComponent();
137 this.app.Run(this.setupWizard);
138 this.installExitEvent.Set();
139 }
140 }
141}
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